Law School Discussion

My grades are horrible-what's the minimum I can give to a person writing my LOR.

Do I have to include my transcript and/or resume.  When I applied to colleges, I just asked my profs to write recommendations for me based on my grades in their classes and their assessments of me.  I am afraid the people writing my LOR will not think so highly of me when they write the LOR if I give them more info than I have to.